Allow to specify code in errors
Add and remove pins (without ownership verification)
Send only pins HTML (for an AJAX call)
Do not send created pin
Retrieve a pin
Move salesFetch-related functions to their own file
Moar error pages
Security check
Refactor parameter checking to a middleware
Smarter error rendering
Use async.waterfall
Check that `id` looks like an ObjectId
Use async.waterfall
Style
Send proper errors
Errors were not proper (fixed, need to use better error handling)
No need to poll filesystem to display error pages
Use batch call
Update should.js
Tests for `add-pin`